Hi Helan,
The best way is to change your WEP key to something else (ideally, change from WEP to WPA-Personal1 or 2). Then restart the router, this will kick off anyone with an active wireless connection and disallow them to reconnect as the password will no longer work.
These seem to be wired devices though so it is where someone has used a cable to connect, is it possible they are visitors etc?
Hi Pipexer, long time no speak

hope you are well
I phoned Zen in the end and they were extremely helpful, we did exactly what you said and changed the the WPA-PSK Encryption and put in a new encryption key and rebooted router and PC.
The only visitors we have who use my network have i-phones or i-pads so I dont know who she is but we were just away for a week in spain and she was using 1 gig a day (while we were in Spain) so lesson there is to turn off the router and to check my network more often.
I do have another couple of questions though if you don't mind?
How do I delete her from showing on my local network devices page? She still seems to be listed on there.
and
How do I change the password on the router so it is not default (I did previously change it to something different but its now default which isn't very secure).
Thanks in advance for any help
[edit] Cancel that I have just managed to figure out how to delete it

obviously need more coffee before posting in the mornings lol
Thank you for your help
Edited by Helan (Thu 02-Aug-12 08:50:48)